{"id":"CVE-2020-15196","details":"In Tensorflow version 2.3.0, the `SparseCountSparseOutput` and `RaggedCountSparseOutput` implementations don't validate that the `weights` tensor has the same shape as the data. The check exists for `DenseCountSparseOutput`, where both tensors are fully specified. In the sparse and ragged count weights are still accessed in parallel with the data. But, since there is no validation, a user passing fewer weights than the values for the tensors can generate a read from outside the bounds of the heap buffer allocated for the weights. The issue is patched in commit 3cbb917b4714766030b28eba9fb41bb97ce9ee02 and is released in TensorFlow version 2.3.1.","aliases":["BIT-tensorflow-2020-15196","GHSA-pg59-2f92-5cph","PYSEC-2020-119","PYSEC-2020-276","PYSEC-2020-311"],"modified":"2026-04-11T12:40:00.474801Z","published":"2020-09-25T19:15:14.870Z","related":["GHSA-pg59-2f92-5cph"],"references":[{"type":"ADVISORY","url":"https://github.com/tensorflow/tensorflow/releases/tag/v2.3.1"},{"type":"FIX","url":"https://github.com/tensorflow/tensorflow/commit/3cbb917b4714766030b28eba9fb41bb97ce9ee02"},{"type":"EVIDENCE","url":"https://github.com/tensorflow/tensorflow/security/advisories/GHSA-pg59-2f92-5cph"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/tensorflow/tensorflow","events":[{"introduced":"0"},{"last_affected":"b36436b087bd8e8701ef51718179037cccdfc26e"},{"fixed":"3cbb917b4714766030b28eba9fb41bb97ce9ee02"},{"fixed":"fcc4b966f1265f466e82617020af93670141b009"}],"database_specific":{"versions":[{"introduced":"0"},{"last_affected":"2.3.0"}]}}],"versions":["0.5.0","0.6.0","v1.1.0-rc1","v1.1.0-rc2","v1.12.1","v1.6.0-rc1","v1.9.0-rc2","v2.3.0","v2.3.0-rc0","v2.3.0-rc1","v2.3.0-rc2"],"database_specific":{"vanir_signatures_modified":"2026-04-11T12:40:00Z","source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-15196.json","vanir_signatures":[{"digest":{"line_hashes":["194455449804247006546970132492779615094","178731129031260204571627040095543599818","22442231680206585208932878058814312758","146741406298267783987235037807096346951","270064729730618086481934325402793011741","329344782668638107157103525047366598930","285728407237300076804994927600394619637","310080866930792095910778699557952768464","273815884519049275176915647183401088747","281569265756867032329963835068941296722","59438575670218216172183450249341417337","59397343641890017345404701263589996852","43962453346651511293497165677412754359","137531346914510616513168760830676577742"],"threshold":0.9},"signature_version":"v1","deprecated":false,"id":"CVE-2020-15196-9a90de26","signature_type":"Line","target":{"file":"tensorflow/core/kernels/count_ops.cc"},"source":"https://github.com/tensorflow/tensorflow/commit/3cbb917b4714766030b28eba9fb41bb97ce9ee02"}]}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H"}]}